US4267329AExpiredUtility
Process for preparation of 2-vinylpyridine from acetylene and acrylonitrile
Assignee: STUDIENGESELLSCHAFT KOHLE MBHPriority: Sep 16, 1978Filed: Jun 2, 1980Granted: May 12, 1981
Est. expirySep 16, 1998(expired)· nominal 20-yr term from priority
C07D 213/08C07F 15/06
63
PatentIndex Score
4
Cited by
13
References
3
Claims
Abstract
A process is described for the catalytic, selective preparation of 2-vinylpyridine from acetylene and acrylonitrile using a cyclopentadienylcobalt catalyst or π-allylcobalt catalyst at elevated temperature in an inert solvent, wherein the acrylonitrile concentration is up to 2 mols/liter and the reaction is carried out at a temperature over 140° C. and up to 180° C., the reaction time being not more than 50 minutes.
Claims
exact text as granted — not AI-modifiedWe claim:
1. π-indenyl (cycloocta-1,5-diene)cobalt.
2. π-trimethylsilylcyclopentadienyl(cycloocta-1,5-diene)cobalt.
3. π-cyclopentadiene-α,α'-bipyridylcobalt.Cited by (0)
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